Question 1

Programming complex machining operations is done on a computer with the aid of ________ software.
A) CAM
B) CAD
C) wireframe
D) Toolpath

Accepted Answer

CAM (Computer-Aided Manufacturing) software is specifically designed for programming complex machining operations, facilitating the creation and modification of product designs and controlling the machinery used in manufacturing.

Question 2

The very first step in using CAM software is to make a drawing with ________ software.
A) toolpath
B) CAM
C) CAD
D) surface model

Accepted Answer

The very first step in using CAM (Computer-Aided Manufacturing) software is to create a drawing or model using CAD (Computer-Aided Design) software. CAD software allows for the design and detailing of objects, which can then be used by CAM software to create the necessary toolpaths for manufacturing.

Question 3

Direct hardening can be performed on steel containing at least ________ percent of carbon.
A) 0.1
B) 0.2
C) 0.3
D) 0.4

Accepted Answer

Direct hardening is typically performed on steel with at least 0.3% carbon to ensure sufficient hardness and strength after heat treatment.

Question 4

The depth of case hardening is usually less than ____ inches.
A) 0.020
B) 0.030
C) 0.040
D) 0.050

Accepted Answer

The answer of The depth of case hardening is usually...

Question 5

The taper used in most modern CNC milling machines is an example of a self-releasing taper and is known as the ____ taper.
A) DROS
B) NMTB
C) TPF
D) R-8

Accepted Answer

The NMTB (National Machine Tool Builders) taper, also known as the NT or NMT taper, is commonly used in CNC milling machines. It is designed for easy tool change and is an example of a self-releasing taper, which allows tools to be easily removed after use.

Question 6

One benefit of the ________ method is its quick setup time.
A) offset tailstock
B) compound rest
C) taper attachment
D) tool digital

Accepted Answer

The answer of One benefit of the ________ method is...

Question 7

Continual use of a ________ wheel requires extreme pressure and creates excessive heat that can lead to thermal discoloration of the workpiece and discomfort as the operator holds the hot workpiece.
A) worn
B) loaded
C) dressed
D) grinding

Accepted Answer

The answer of Continual use of a ________ wheel requires...

Question 8

Precision fixed gages are usually used to no more than ________ accuracy.
A) 0.0002 inch
B) 0.0003 inch
C) 0.0004 inch
D) 0.0005 inch

Accepted Answer

The answer of Precision fixed gages are usually used to...

Question 9

Knee-type milling machines often use IPR for power quill feed settings, but power feeds for the table and saddle are specified in ________.
A) IPT
B) IPM
C) FPT
D) RPM

Accepted Answer

Power feeds for the table and saddle on knee-type milling machines are specified in Inches Per Minute (IPM), which measures the distance the table or saddle moves in one minute.

Question 10

A ________ is an internal part feature machined into the surface of a workpiece.
A) tram
B) pocket
C) chip
D) bore

Accepted Answer

A pocket is an internal feature that is machined into the surface of a workpiece, often for the purpose of creating a recess or cavity within the material.

Question 11

Pi is shown by the symbol ____.
A)  $\pi$
B)#
C) µ
D) §

Accepted Answer

Pi is represented by the symbol $\pi$.

Question 12

In right-angle trigonometry, angle ____ is always 90 degrees and side ____ is called the hypotenuse.
A) A, a
B) B, b
C) C, c
D) X, x

Accepted Answer

In right-angle trigonometry, angle C is always 90 degrees, and side c is called the hypotenuse. This is a standard convention in trigonometry where a right-angled triangle is described with angles A, B, and C (with C being the right angle) and corresponding opposite sides a, b, and c (with c being the hypotenuse).

Question 13

_________are often responsible for measuring sizes to ensure parts meet specifications shown on engineering drawings.
A) Assemblers
B) Operators
C) Technicians
D) Machinists

Accepted Answer

The answer of _________are often responsible for measuring sizes to...

Question 14

The ____ point is the lowest temperature where the substance can be ignited.
A) boiling
B) flash
C) melting
D) explosive

Accepted Answer

The flash point of a substance is the lowest temperature at which it can vaporize to form an ignitable mixture in air.

Question 15

The force of a rotating cutting tool can cause a loose ________ to move and violently pull workpieces from the machine and shatter cutting tools, causing serious injury.
A) table
B) saddle
C) turret
D) ram

Accepted Answer

The answer of The force of a rotating cutting tool...

Quiz 1: Precision Machining Technology

Programming complex machining operations is done on a computer with the aid of ________ software.

The very first step in using CAM software is to make a drawing with ________ software.

Direct hardening can be performed on steel containing at least ________ percent of carbon.

The depth of case hardening is usually less than ____ inches.

The taper used in most modern CNC milling machines is an example of a self-releasing taper and is known as the ____ taper.

One benefit of the ________ method is its quick setup time.

Continual use of a ________ wheel requires extreme pressure and creates excessive heat that can lead to thermal discoloration of the workpiece and discomfort as the operator holds the hot workpiece.

Precision fixed gages are usually used to no more than ________ accuracy.

Knee-type milling machines often use IPR for power quill feed settings, but power feeds for the table and saddle are specified in ________.

A ________ is an internal part feature machined into the surface of a workpiece.

Pi is shown by the symbol ____.

In right-angle trigonometry, angle is always 90 degrees and side is called the hypotenuse.

_________are often responsible for measuring sizes to ensure parts meet specifications shown on engineering drawings.

The ____ point is the lowest temperature where the substance can be ignited.

The force of a rotating cutting tool can cause a loose ________ to move and violently pull workpieces from the machine and shatter cutting tools, causing serious injury.